Question Why is my memory fluctuating so much on CPU-Z?

[BennyComputer]

For some odd reason my ram is always switching between 400MHz and 933MHz on CPU-Z DRAM frequency, when it really should be 1200 as my ram is 1 stick of 2400MHz 8GB ram? Is this a glitch or is their any solution I have to fix this? Photos of ram on cpu-z: https://ibb.co/DVCRh49 https://ibb.co/h7tqGmF I have an Acer Nitro 5 ANS15-42

 

[kerberos_20]

powers saving feature